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Related Concept Videos

Teeth01:15

Teeth

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The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
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Tooth Anatomy01:21

Tooth Anatomy

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The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
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Development of the Oral Microbiota01:28

Development of the Oral Microbiota

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The establishment of the oral microbiome begins before birth, challenging the long-held belief that the fetal oral cavity is sterile. The presence of oral microbes such as Streptococcus and Fusobacterium in amniotic fluid suggests that microbial exposure may occur in utero, potentially through translocation from the maternal oral or gastrointestinal tract. This early colonization primes the neonatal immune system and sets the stage for subsequent microbial succession. Maternal health,...
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Masonry Cavity Walls01:26

Masonry Cavity Walls

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Cavity walls feature a hollow space between the outer and inner wythes, connected only by corrosion-resistant metal ties. When water seeps through the outer wythe, it descends within this cavity, intercepted by flashing and eventually exiting through weep holes. To enhance moisture resistance, the inner wythe's cavity side often receives damp-proofing, doubling as an air barrier. The cavity can also house insulation to mitigate heat transfer.
Maintaining a clean cavity during construction...
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Oral Cavity01:11

Oral Cavity

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The oral cavity, or the mouth, is a complex structure in humans that plays a vital role in our day-to-day lives. Its role is not only in chewing and swallowing food; it also plays a role in speech and facial expressions.
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...
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Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

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Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
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Related Experiment Video

Updated: Mar 23, 2026

The Slice Culture Method for Following Development of Tooth Germs In Explant Culture
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The Slice Culture Method for Following Development of Tooth Germs In Explant Culture

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Cavity lining in primary teeth.

Ravi Chauhan1

  • 1Restorative Dentistry, King's College Dental Hospital and William Harvey Hospital (Kent, Surrey and Sussex Deanery), UK.

Evidence-Based Dentistry
|March 26, 2016
PubMed
Summary
This summary is machine-generated.

Dental cavity lining use in primary teeth shows no significant difference in restoration failure risk. Current low-quality evidence does not support or refute the routine use of liners after caries removal.

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Analysis of Developing Tooth Germ Innervation Using Microfluidic Co-culture Devices
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Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice

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Related Experiment Videos

Last Updated: Mar 23, 2026

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The Slice Culture Method for Following Development of Tooth Germs In Explant Culture

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Analysis of Developing Tooth Germ Innervation Using Microfluidic Co-culture Devices
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Analysis of Developing Tooth Germ Innervation Using Microfluidic Co-culture Devices

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Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice
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Area of Science:

  • Dentistry
  • Pediatric Dentistry
  • Dental Materials

Background:

  • Dental caries is a prevalent disease in primary teeth.
  • Caries removal and restoration are standard treatments.
  • The use of cavity liners before restoration is a debated topic.

Purpose of the Study:

  • To evaluate the effectiveness of cavity liners in primary teeth restorations.
  • To compare restoration outcomes with and without cavity liners after caries removal.

Main Methods:

  • Systematic review and meta-analysis of randomized controlled trials.
  • Searched multiple databases including Embase, Medline, and Cochrane Central.
  • Included studies comparing no lining versus lining (calcium hydroxide) in primary teeth restorations.

Main Results:

  • Three studies with 89 patients were included, all involving primary teeth from Brazil.
  • Follow-up ranged from 26-53 months; all studies had a high risk of bias.
  • Restoring cavities without lining did not significantly impact failure risk; evidence quality was low.

Conclusions:

  • Existing evidence does not support strong recommendations for or against using liners in primary teeth.
  • Findings are specific to primary teeth, selective excavation, and calcium hydroxide liners.